期刊
FOOD CHEMISTRY: MOLECULAR SCIENCES
卷 4, 期 -, 页码 -出版社
ELSEVIER
DOI: 10.1016/j.fochms.2022.100087
关键词
Vigna unguiculata; Cajanus cajan; Phaseolus vulgaris; Non-targeted metabolomics; UPLC-MS; Legumes; Phytochemicals
资金
- United States Agency for International Development (USAID), Feed the Future Innovation Lab for Legume Systems Research [7200AA18LE00003]
This study analyzed the composition of cowpea, pigeon pea, and common bean using UPLC-MS technology. It identified several metabolites that can differentiate these legumes, with cowpea having higher abundance of novel metabolites compared to other legumes. Additionally, specific metabolite markers were found in different cowpea varieties.
Legumes are global staple foods with multiple human health properties that merit detailed composition analysis in cooked forms. This study analyzed cowpea [Vigna unguiculata] (three varieties: Dagbantuya, Sangyi, and Tukara), pigeon pea [Cajanus cajan], and common bean [Phaseolus vulgaris] using two distinct ultra-performance liquid chromatography mass spectrometry (UPLC-MS) platforms and analytical workflows. Comparisons between cowpea and pigeon pea consumed in Ghana, and common bean (navy bean) from USA, revealed 75 metabolites that differentiated cowpeas. Metabolite fold-change comparisons resulted in 142 metabolites with significantly higher abundance in cowpea, and 154 higher in abundance from pigeon pea. 3-(all-trans-nonaprenyl)benzene-1,2-diol, N-tetracosanoylphytosphingosine, and sitoindoside II are novel identifications in cowpea, with notably higher abundance than other legumes tested. Cowpea variety specific markers were tonkinelin (Dagbantuya), pheophytin A (Sangyi), and linoleoyl ethanolamide (Tukara). This study identified novel cowpea and pigeon pea food metabolites that warrant continued investigation as bioactive food components following consumption in people.
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